Two prominent reasons why aluminium is so indispensable to the aerospace industry have already been mentioned - high strength and weight ratio, which are of great value to the aerospace industry.
Airframes must be strong enough to withstand the stress of takeoff and landing over time. At the same time, if the metal is too heavy, it will require more fuel consumption during flight. This means that aluminum is often a more cost-effective option for aircraft. Aircraft grade aluminum for sale usually refers 2xxx and 7xxx aluminum.
2014 Aluminum
2014 aluminum alloy is Al-Cu-Mg-Si high-strength forged aluminum alloy, which can be strengthened by heat treatment. The chemical composition of the alloy is similar to that of 2A14 aluminum alloy, and it has high strength and good hot workability, and is easy to forge. The performance is basically the same as 2A14. Due to the high copper content of the alloy, its corrosion resistance is poor, and it is prone to intergranular corrosion and stress corrosion.
2024 Aluminum
2024 aluminum sheet is a typical hard aluminum alloy in the aluminum-copper-magnesium series. It features high compressive strength and certain temperature resistance. It can be used as working parts below 150 degrees. After heat treatment, the 2024 aluminum alloy has undergone solid solution treatment to obtain relatively high compressive strength and ductility. Because its strength is very high, it is generally used to produce skins, beams, bulkheads, and wings of airplanes.
7050 Aluminum
7050 aluminum alloy, belonging to Al-Zn-Mg-Cu series, has the advantages of low density, high strength, good machinability, good resistance to exfoliation corrosion and stress corrosion cracking (SCC), etc. It is often used in aerospace, automobile and tooling and fixtures, etc.
7150 Aluminum
The super-strength, high-toughness, and corrosion-resistant 7150 aluminum alloy was successfully developed in the late 1970s. The appearance of 7150 aluminum alloy was the first to achieve the goal of both good corrosion resistance and alloy strength. 7150 aluminum plate, profiles, castings, etc., are widely used in the aerospace. It is used to make high-strength structural parts of aircraft, such as aircraft wing spar, main landing gear beam, nose landing gear action barrel, vertical tail joint,
7075 Aluminum
7075 aluminum alloy refers to a commonly used alloy in the 7 series aluminum alloy. Zinc is the main alloying element in the bending 7075 aluminum. The addition of magnesium to the alloy containing 3%-7.5% zinc can form MgZn2 with a significant strengthening effect. Among the series, the 7075-T651 aluminum alloy has the best comprehensive performance.
Original Source:https://www.aircraftaluminium.com/a/the-main-alloys-of-aircraft-grade-aluminum-for-sale.html
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